18781878

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:528

約数の個数: 32

約数和(自身を含む): 38478816

約数和(自身を除く): 19696938

約数列:

[1, 2, 3, 6, 73, 137, 146, 219, 274, 313, 411, 438, 626, 822, 939, 1878, 10001, 20002, 22849, 30003, 42881, 45698, 60006, 68547, 85762, 128643, 137094, 257286, 3130313, 6260626, 9390939, 18781878]

約数ペア:

[(1, 18781878), (2, 9390939), (3, 6260626), (6, 3130313), (73, 257286), (137, 137094), (146, 128643), (219, 85762), (274, 68547), (313, 60006), (411, 45698), (438, 42881), (626, 30003), (822, 22849), (939, 20002), (1878, 10001)]